"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 故障&可靠性测试
Case Name   : 主节点备份过程中停止主节点-h指向备节点
Create At   : 2020/12/1
@zou_jialiang0505328126
Description :
    1.主节点执行备份-h指向备节点
    2.备份过程中停止主节点
    3.恢复主节点
    4.重启集群
Expect      :
    1.备份成功
    2.停止主节点成功
    3.修改参数成功
    4.重启集群成功
History     :
"""

import os
import unittest
import sys
from yat.test import macro
from yat.test import Node

sys.path.append(sys.path[0] + "/../")
from testcase.utils.CommonSH import *
from testcase.utils.Common import Common
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from testcase.utils.ComThread import ComThread


class Basebackup(unittest.TestCase):
    commonshpri = CommonSH('PrimaryDbUser')
    commonshsta = CommonSH('Standby1DbUser')
    commonshsta2 = CommonSH('Standby2DbUser')
    nodes_tuple = ('PrimaryDbUser', 'Standby1DbUser', 'Standby2DbUser')

    @RestartDbCluster(*nodes_tuple)
    def setUp(self):
        self.log = Logger()
        self.log.info('------------Opengauss_Reliability_Tools_Backup_Case026.py 开始执行------------')
        self.dbPrimaryDbUser = Node(node='PrimaryDbUser')
        self.dbStandby1DbUser = Node(node='Standby1DbUser')
        self.dbStandby2DbUser = Node(node='Standby2DbUser')
        self.dbStandby1Root = Node(node='Standby1Root')
        self.dbPrimaryRootNode = Node(node='PrimaryRoot')
        self.Constant = Constant()
        self.common = Common('PrimaryRoot')
        self.backup_file = os.path.join(macro.DB_BACKUP_PATH, 'backup_dir')
        self.primary_hostname = self.dbPrimaryDbUser.sh('hostname').result()
        self.standby_hostname = self.dbStandby1DbUser.sh('hostname').result()

        self.log.info('-------------------创建备份路径-----------------------------------')
        shell_cmd = f'rm -rf {self.backup_file}; mkdir {self.backup_file};'
        self.log.info(shell_cmd)
        result = self.dbStandby1DbUser.sh(shell_cmd).result()
        self.log.info(result)

    def test_backup(self):
        self.log.info("-----------------------------1.主节点执行备份-h指向备节点：成功---------------------------------")
        backup_thread = ComThread(self.commonshpri.execu_gs_backup,
                                  args=('backup', self.standby_hostname, self.backup_file, "--all",))
        backup_thread.setDaemon(True)
        backup_thread.start()

        self.log.info('-----------------------------2.备份过程中停止主节点:成功------------------------------')
        result = self.commonshpri.stopDbInstance()
        self.assertTrue(result)

        self.log.info('==================检查步骤1结果================')
        backup_thread.join(20 * 60)
        result = backup_thread.get_result()
        self.log.info(result)
        self.assertIn(self.Constant.BACKUP_BACKUP_SUCCESS_MSG, result)
        cmd = f'ls -l {self.backup_file} |grep "^-"|wc -l'
        self.log.info(cmd)
        result = self.dbStandby1Root.sh(cmd).result()
        self.log.info(result)
        self.assertLess(0, int(result))

        self.log.info('-------------------3.恢复主节点:成功-----------------------------------')
        result = self.commonshpri.execu_gs_backup('restore', self.standby_hostname, self.backup_file, "--all")
        self.assertIn(self.Constant.BACKUP_RESTORE_SUCCESS_MSG, result)

        self.log.info('-------------------4.重启集群:成功------------------------')
        result = self.commonshpri.stopDbCluster()
        self.assertTrue(result)
        result = self.commonshpri.startDbCluster
        self.assertTrue(result)

    def tearDown(self):
        self.log.info('-------------------------环境清理------------------------')
        self.log.info('--------------------------删除备份文件------------------')
        shell_cmd = f'rm -rf {self.backup_file}'
        self.log.info(shell_cmd)
        result = self.dbPrimaryDbUser.sh(shell_cmd).result()
        self.log.info(result)
        result = self.dbStandby1DbUser.sh(shell_cmd).result()
        self.log.info(result)
        result = self.dbStandby2DbUser.sh(shell_cmd).result()
        self.log.info(result)

        self.log.info('----------Opengauss_Reliability_Tools_Backup_Case026.py 执行结束-----------------------')
